Kotatsu quilt and mattress set, square, 80 x 80, suitable for tabletops, glossy chenille weave and soft flannel lining, kotatsu quilt Soft, fluffy and warm. "Toray Mashlon Cotton" Conventional product (compared to our company) This product is fluffy and voluminous. The filling has a hole in the middle, which was developed using Toray's silk-making technology. Uses hollow structure polyester raw cotton "Toray Mashron Cotton". It is soft and fluffy with excellent elasticity, and the cotton fibers trap warm air, It is voluminous yet lightweight, and provides increased heat retention.